Washing machine

ABSTRACT

A washing machine is provided. The washing machine includes a cabinet having an opening, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the tub and the cabinet to each other to reduce vibration of the tub to be transmitted to the cabinet during rotation of the drum, and an injection device configured to inject wash water into the tub. The injection device includes an injection nozzle into which wash water is introduced, the injection nozzle penetrating the gasket, an injection guide configured to guide wash water introduced through the injection nozzle so as to inject the wash water, and a fastener penetrating the gasket to fix a position of the injection nozzle. The washing machine configuration ensures easy coupling of the injection device and prevent change in the direction of the injection device.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is related to, and claims the priority benefit ofKorean Patent Application No. 10-2013-0061294, filed on May 29, 2013 inthe Korean Intellectual Property Office, and the priority benefit ofU.S. Provisional Application No. 61/828,285, filed on May 29, 2013 inthe United States Patent and Trademark Office, the disclosures of whichare incorporated herein by reference.

BACKGROUND

1. Field

Embodiments relate to a washing machine having an improved wash waterinjection configuration.

2. Description of the Related Art

In general, washing machines serve to wash or dry laundry. For laundrytreatment using a washing machine, wash water introduced from anexternal source may be subjected to circulation and injection.

A typical washing machine includes a cabinet defining an externalappearance of the washing machine, a tub placed within the cabinet, anda drum rotatably placed within the tub. A gasket to reduce vibration maybe interposed between the tub and the cabinet. An injection nozzle toinject wash water may be located at the gasket. Since the gasket may beformed of a high ductility material, such as rubber, etc., installingthe injection nozzle to the gasket may cause leakage of wash water fromthe tub due to change in the direction of the injection nozzle.

In addition, in the process of installing the injection nozzle to thegasket, a position of the injection nozzle may be changed by injectionpressure of wash water or vibration of the drum during washing.

SUMMARY

It is an aspect of an embodiment to provide a washing machine in whichan injection device to inject wash water may be stably fixed withoutchange in position.

Additional aspects are set forth in part in the description whichfollows and, in part, will be obvious from the description, or may belearned by practice of the invention.

In accordance with an aspect of an embodiment, a washing machineincludes a cabinet having an opening, a tub placed within the cabinet, adrum rotatably placed within the tub, a gasket connecting the tub andthe cabinet to each other to reduce vibration of the tub to betransmitted to the cabinet during rotation of the drum, and an injectiondevice configured to inject wash water into the tub, wherein theinjection device includes an injection nozzle into which wash water isintroduced, the injection nozzle penetrating the gasket, an injectionguide configured to guide wash water introduced through the injectionnozzle so as to inject the wash water, and a fastener penetrating thegasket to fix a position of the injection nozzle.

The fastener may be spaced apart from the injection nozzle in parallel.

The fastener may be located at an exit end of the an injection flow pathdefined in the injection guide.

The fastener may include a fastener flow path communicating with theinterior of the tub.

The washing machine may include a bubble generation device configured togenerate and supply bubbles into the tub, and interior air of the drummay be guided to the bubble generation device through the fastener flowpath.

At least one of the injection nozzle and the fastener may include astepped portion protruding from an outer circumference thereof to allowthe injection nozzle to be supported by an outer surface of the gasket.

The gasket may include a through-hole for penetration of at least aportion of the injection device, and a support portion protrudingoutward from the gasket around the through-hole to support the steppedportion.

The injection guide may include an upper guide, by which the injectionnozzle and the fastener are supported, a lower guide facing a nozzleflow path defined in the injection nozzle, the lower guide beinginclined toward the drum, and a lateral guide connecting the upper guideand the lower guide to each other.

The upper guide may include a bent surface inclined toward the drum anddefining an upper boundary of wash water injected via the injectionguide.

One end of a fastener flow path defined in the fastener may be locatedon the bent surface.

The injection device may include at least one injection device locatedin a circumferential direction of the gasket.

In accordance with an aspect of an embodiment, a washing machineincludes a cabinet, a tub placed within the cabinet, a drum rotatablyplaced within the tub, a gasket connecting the cabinet and the tub toeach other, and an injection device penetrating the gasket, wherein theinjection device includes an injection nozzle having a nozzle seatsupported by a support portion protruding from the gasket to prevent theinjection device from being separated in the Z-axis corresponding to alongitudinal direction of the injection nozzle, and a nozzle flow pathpenetrating the gasket to communicate the interior and the exterior ofthe gasket with each other, and a fastener spaced apart from theinjection nozzle in parallel.

The injection device may include an injection guide configured to injectwash water introduced through the nozzle flow path into the drum.

The injection nozzle and the fastener may be spaced apart from eachother and coupled to the injection guide.

The fastener may be located closer to the exit end of the injectionguide than the injection nozzle.

The fastener may include a fastener flow path communicating with theinterior of the tub.

The washing machine may include a bubble generation device to generateand supply bubbles into the tub, and interior air of the drum may beguided to the bubble generation device through the fastener flow path.

The injection device may include at least one injection device locatedin a circumferential direction of the gasket.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other aspects of the embodiments will become apparent andmore readily appreciated from the following description of theembodiments, taken in conjunction with the accompanying drawings ofwhich:

FIG. 1 is a view illustrating a washing machine according to anembodiment;

FIG. 2 is a view illustrating an arrangement of an injection deviceaccording to an embodiment;

FIG. 3 is a view illustrating a coupled state of an injection deviceaccording to an embodiment;

FIG. 4 is a sectional view of the injection device according to anembodiment;

FIG. 5 is a view illustrating a washing machine according to anembodiment;

FIG. 6 is a view illustrating an arrangement of an injection deviceaccording to an embodiment;

FIG. 7 is a sectional view of an injection device according to anembodiment;

FIG. 8 is a perspective view of an injection device according to anembodiment; and

FIG. 9 is a view illustrating a coupled state of an injection deviceaccording to an embodiment.

DETAILED DESCRIPTION

Reference will now be made in detail to the embodiments, examples ofwhich are illustrated in the accompanying drawings, wherein likereference numerals refer to like elements throughout.

FIG. 1 is a view illustrating a washing machine according to anembodiment.

The washing machine according to an embodiment, as exemplarilyillustrated in FIG. 1, includes a cabinet 10 defining an externalappearance of the washing machine, a tub 20 in which wash water isreceived, the tub 20 being installed within the cabinet 10 viasuspension, a drum 30 rotatably installed within the tub 20, a door 12to open or close a laundry opening 11 for introduction of laundry, and adrive motor 40 installed to a rear surface of the tub 20 to generatetorque required to rotate the drum 30.

Accordingly, as the drum 30 is rotated by the drive motor 40 afterlaundry is introduced into the drum 30 through the laundry opening 11opened by the door 12, the laundry within the drum 30 is washed by beingraised upward and dropping.

The drum 30 has communication holes 31 to allow wash water of the tub 20to be introduced into the drum 30. Lifters 32 to raise laundry upwardmay be arranged inside the drum 30.

The drive motor 40 includes a stator 41 installed to the tub 20, a rotor42 to implement rotation via interaction with the stator 41, and arotating shaft 43 having one end coupled to the rotor 42 and the otherend penetrating the rear surface of the tub 20 to thereby be installedto the drum 30, the rotating shaft 43 being rotated along with the rotor42 to rotate the drum 30.

A water supply device 50 to supply water into the tub 20 may be disposedabove the tub 20, and a drain device 60 to discharge wash water from thetub 20 may be disposed below the tub 20.

The water supply device 50 includes a first water supply pipe 51connected to an external water supply source, a water supply valve 52 toopen or close the first water supply pipe 51, a detergent feeder 53 tomix detergent with wash water supplied through the first water supplypipe 51, a second water supply pipe 54 connecting the detergent feeder53 and the tub 20 to each other to guide a mixture of the detergent andwash water to the tub 20, and a third water supply pipe 55 diverged fromthe first water supply pipe 51 and connected to an injection device 100.The drain device 60 includes a pump 61 to pump wash water from the tub20, a first drainpipe 62 connecting the tub 20 and the pump 61 to eachother to guide wash water of the tub 20 to the pump 61, and a seconddrainpipe 63 connected to the pump 61 and extending outward from thecabinet 1 to outwardly discharge wash water.

A gasket 80 may be interposed between the cabinet 10 and the tub 20. Thegasket 80 may be coupled at one side thereof to the cabinet 10 and atthe other side thereof to the periphery of a front opening of the tub20. This prevents wash water stored in the tub 20 from leaking from agap between the tub 20 and the cabinet 10. The gasket 80 may have acorrugated peripheral portion to absorb vibration of the tub 20.

The gasket 80 may include a tub coupling portion 81 fastened to the tub20, a cabinet coupling portion 82 fastened to the cabinet 10, and aconnection portion 83 connecting the tub coupling portion 81 and thecabinet coupling portion 82 to each other, the connection portion 83being corrugated to absorb shock.

The gasket 80 may be formed of an elastic material, and may containadditives to increase elasticity and rigidity thereof.

To inject wash water into the drum 30 or to suction interior air of thedrum 30, the gasket 80 is provided with a first injection device 101 anda second injection device 102. According to an embodiment injection ofwash water may use the two injection devices 100, however, thedisclosure is not limited thereto, and the injection devices 100 may beinstalled to inject wash water into the drum 30 or toward the door 12 inat least one direction.

In addition, although an embodiment may provide the gasket 80 with thetwo injection devices 100, the injection devices may be provided atvarious positions for injection of wash water into the drum 30.

FIG. 2 is a view illustrating arrangement of the injection deviceaccording to an embodiment, FIG. 3 is a view illustrating a coupledstate of the injection device according to an embodiment, and FIG. 4 isa sectional view of the injection device according to an embodiment.

The injection devices 100 may be provided at the gasket 80, for example,the injection devices may be provided at the connection portion 83 ofthe gasket 80.

The number and position of the injection devices 100 are not limited tothe above description, and one or more injection devices may be arrangedin a circumferential direction of the gasket 80. According to anembodiment, for convenience of description, two first and secondinjection devices 101 and 102 may be arranged at symmetrical left andright positions of an upper end of the gasket 80.

Each injection device 100 may include an injection nozzle 110, aninjection guide 120, and a fastener 130.

The injection nozzle 110, the injection guide 120, and the fastener 130may be separate elements, or may be integrally formed via injectionmolding.

The injection nozzle 110 may be connected to a water supply pipe toinject wash water into the drum 30. Although a wash water supply path tothe injection nozzle 110 is not specifically defined, according to anembodiment, the injection nozzle 110 may be connected to the third watersupply pipe 55 diverged from the first water supply pipe 51.

The injection nozzle 110 has a nozzle flow path 112 a for passage ofwash water. One end of the injection nozzle 110 may be connected to thewater supply pipe and the other end of the injection nozzle 110 may becoupled to the injection guide 120. The injection nozzle 110 may beseparate from the injection guide 120, or may be integrally formed withthe injection guide 120.

The injection nozzle 110 penetrates the connection portion 83 of thegasket 80. The injection nozzle 110 may have a stepped portion 114around an outer circumference thereof and may be supported by an outersurface of the gasket 80 by the stepped portion 114. The other end ofthe injection nozzle 110 may be supported by the injection guide 120that supports an inner surface of the gasket 80. The injection nozzle110 may be installed to the gasket 80 without a risk of separation.

Although the stepped portion 114 may be formed at the injection nozzle110, the stepped portion 114 may be formed at the fastener 130. Theinjection nozzle 110 and the fastener 130 may be provided respectivelywith a nozzle seat 116 and a seat 136, which are coupled to the gasket80 between the respective stepped portions 114 and 134 and the injectionguide 120. Lengths of the nozzle seat 116 and the seat 136 may varybased on a thickness of the gasket 80.

The injection guide 120 may be provided at the other end of theinjection nozzle 110 to inject wash water passing through the nozzleflow path 112 a.

The injection guide 120 may have a fanwise injection flow path 120 a, awidth of which gradually increases toward an exit end thereof. Thisshape ensures that wash water is injected over a wide range into thedrum 30.

The injection guide 120 may include a lower guide 122, an upper guide124, and a lateral guide 126.

The lower guide 122 may be located to face an exit end 112 b of thenozzle flow path 112 a, and may obliquely extend into the drum 30. Awidth of the lower guide 122 may increase toward the exit end of theinjection flow path 120 a. The upper guide 124 supports the injectionnozzle 110 and the fastener 130 and defines an upper boundary of washwater. The lateral guide 126 may extend to connect the upper guide 124and the lower guide 122 to each other.

Wash water introduced into the nozzle flow path 112 a may have upper andlower boundaries defined by the upper guide 124 and the lower guide 122and a width direction boundary defined by the lateral guide 126.

The upper guide 124 may have a bent surface 125 such that at least aportion of the upper guide 124 proximate to the injection flow path 120a is inclined into the drum 30. The bent surface 125 defines the upperboundary of wash water passing through the injection flow path 120 a.

Both the fastener 130 and the injection nozzle 110 may be supported bythe upper guide 124 of the injection guide 120. The fastener 130 may bespaced apart from the injection nozzle 110 and function to preventchange in the direction of the injection nozzle 110.

Assuming that a longitudinal axis of the nozzle flow path 112 a of thehollow injection nozzle 110 is the Z-axis, the fastener 130 may belocated in parallel to the Z-axis and be integrated with the upper guide124. The fastener 130 penetrates the gasket 80 to thereby be supportedby the gasket 80. Consequently, the fastener 130 may prevent theinjection nozzle 110 from being tilted to the X-axis or the Y-axisperpendicular to the Z-axis.

Wash water may be injected into the drum 30 by passing through thenozzle flow path 112 a of the injection nozzle 110 and the injectionflow path 120 a of the injection guide 120. Both the injection flow path120 a and the nozzle flow path 112 a may be angled to each other, whichmay cause direction change due to injection pressure of wash water.

For this reason, the fastener 130 may be located at the exit end of theinjection flow path 120 a of the injection guide 120. That is, thefastener 130 may be positioned on the injection guide 120 so as to bespaced apart, for example, in parallel, from the injection nozzle 110toward the exit end of the injection flow path 120 a.

The gasket 80 may have through-holes 84 such that the injection nozzle110 and the fastener 130 penetrate the gasket 80, and support portions85 protruding outward from the gasket 80 around the through-holes 84.

The injection nozzle 110 and the fastener 130 may be respectivelyprovided with the stepped portions 114 and 134, and thus are supportedby the outer surface of the gasket 80. Although the stepped portions 114and 134 may be directly supported by the through-holes 84, the steppedportions 114 and 134 may be supported by ends of the support portions 85to allow the injection device 100 to be supported by the gasket 80.

The stepped portions 114 and 134 of the injection device 100 may besupported by the outer surface of the gasket 80 and the inner surface ofthe gasket 80 may be supported by the upper guide 124.

A positioning recess 86 may be formed in the support portion 85, and afixing boss 118 formed at the injection nozzle 110 or the fastener 130may be seated in the positioning recess 86.

The positioning recess 86 is formed in one side of the support portion85, and the fixing boss 118 is formed at an outer circumference of theinjection nozzle 110 or the fastener 130 to correspond to thepositioning recess 86. According to an embodiment, the fixing boss 118is formed at the injection nozzle 110.

The positioning recess 86 and the fixing boss 118 function to preventchange in the position of the injection nozzle 110, and to indicate acoupling position to assist the injection device 100 in being coupled tothe gasket 80 at an accurate position without direction change.

FIG. 5 is a view illustrating a washing machine according to anembodiment, FIG. 6 is a view illustrating arrangement of an injectiondevice according to an embodiment, FIG. 7 is a sectional view of theinjection device according to an embodiment, and FIG. 8 is a perspectiveview of the injection device according to an embodiment.

A description related to the same parts as the above description isomitted hereinafter.

A bubble generation device 70 may be disposed below the tub 20 togenerate and supply bubbles into the tub 20.

The bubble generation device 70 may be connected to a transfer pipe 64which may be in turn connected to the pump 61 such that wash water issupplied from the pump 61 to the transfer pipe 64. The bubble generationdevice 70 may be connected to a connection pipe 13 which may be in turnconnected to the top of the tub 20 such that air may be transferred tothe bubble generation device 70. One end of the connection pipe 13 maybe connected to the bubble generation device 70, and the other end ofthe connection pipe 13 positioned higher than the level of wash waterreceived in the tub 20 such that interior air of the tub 20 may besuctioned into the connection pipe 13. As such, bubbles may be generatedand supplied into the tub 20 as wash water transferred from the pump 61and air transferred through the connection pipe 13 are mixed in thebubble generation device 70.

According to an embodiment, the injection device 100 may include a thirdinjection device 103.

The pump 61 may be provided with a circulation pipe 65 connected to thethird injection device 103. Wash water supplied from the pump 61 throughthe circulation pipe 65 may be directed to the injection nozzle 110 ofthe third injection device 103, and then may be directed into the drum30.

The fastener 130 may be spaced apart from the Z-axis of the injectionnozzle 110 and functions to prevent change in the direction of theinjection device 110. In addition, the fastener 130 may function totransfer interior air of the tub 20 to the bubble generation device 70through a fastener flow path 130 a formed therein.

That is, the other end of the connection pipe 13 connected to the bubblegeneration device 70 may be coupled to the fastener 130 such thatinterior air of the tub 20 is suctioned into the bubble generationdevice 70.

One end of the fastener flow path 130 a may communicate with theconnection pipe 13 connected to the bubble generation device 70, and theother end of the fastener flow path 130 a may be located at the bentsurface 125 of the upper guide 124 to communicate with the interior ofthe tub 20.

Since the upper boundary of wash water injected through the injectionflow path 120 a may be defined by the bent surface 125 and the end ofthe fastener flow path 130 a may be located on the bent surface 125, itmay be possible to prevent wash water from flowing backward through thefastener flow path 130 a.

A washing machine having the above described configuration isadditionally described.

A description related to the same parts as those of the above describedwashing machine is omitted hereinafter.

The washing machine includes the cabinet 10, the tub 20 placed withinthe cabinet 10, the drum 30 rotatably placed within the tub 20, thegasket 80 connecting the cabinet 10 and the tub 20 to each other, andthe injection device 100 penetrating the gasket 80.

The injection device 100 includes the injection nozzle 110, whichincludes the nozzle seat 116 supported by the support portion 85protruding from the gasket 80 to prevent the injection device 100 frombeing separated in the Z-axis corresponding to a longitudinal directionof the injection nozzle 110 and the nozzle flow path 112 a penetratingthe gasket 80 to communicate the interior and the exterior of the gasket80 with each other, and the fastener 130 spaced apart from the injectionnozzle 110 to prevent the injection device 100 from being tilted to theX-axis or the Y-axis perpendicular to the Z-axis.

The injection device 100 may include the injection guide 120 to injectwash water introduced through the nozzle flow path 112 a into the drum30. The injection nozzle 110 and the fastener 130 may be coupled to theinjection guide 120 at positions spaced apart from each other.

The fastener 130 may be located closer to the exit end of the injectionguide 120 than the injection nozzle 110.

The fastener 130 may include the fastener flow path 130 a communicatingwith the interior of the tub 20. The bubble generation device 70 togenerate and supply bubbles into the tub 30 may be provided, andinterior air of the drum 30 may be directed to the bubble generationdevice 70 through the fastener flow path 130 a.

Hereinafter, the washing machine according to another embodiment isdescribed.

A description related to the same parts as the above description isomitted hereinafter.

FIG. 9 is a view illustrating a coupled state of an injection deviceaccording to an embodiment.

An injection device 210 may include an injection nozzle 220, aninjection guide 224, and a fastener 230.

The fastener 230 may extend from the injection nozzle 220 in a radialdirection from an axial nozzle flow path 220 a of the injection nozzle220.

A through-hole 202 of a gasket 200 may have a combined shape of thecircular cross section of the injection nozzle 220 and a bar-shapedcross section of the fastener 230.

According to an embodiment, it may be possible to prevent the fastener230 from being rotated about the Z-axis of the injection nozzle 220, andconsequently, to prevent change in the direction of the injection nozzle220.

Coupling of the injection device having the above describedconfiguration is described.

The injection device 100 may be coupled and fixed to the gasket 80, andfunction to inject wash water from the exterior to the interior of thegasket 80 or to discharge interior air of the drum 30 to the exterior ofthe gasket 80.

The gasket 80 may have a through-hole 84 for insertion of the injectiondevice 100. According to an embodiment, a plurality of through-holes 84may be provided for injection of both the fastener 130 and the injectionnozzle 110.

When the fastener 130 and the injection nozzle 110 are inserted into thegasket 80, the injection nozzle 110 and the fixing boss 118 may bepositioned to correspond to the positioning recess 86 of the supportportion 85. As the stepped portions 114 and 134 are supported by theends of the support portions 85 and the upper guide 124 of the injectionguide 120 is supported by the inner surface of the gasket 80, it may bepossible to prevent the injection device 100 from being separated fromthe gasket 80.

Since the injection nozzle and the fastener 130 are spaced apart fromeach other in parallel, the fastener 130 may prevent change in thedirection of the injection nozzle 110.

A technological advantage of an embodiment includes a washing machinehaving an improved configuration of an injection device and may ensureeasy coupling of the injection device and prevent change in thedirection of the installed injection device, thereby maintaining aconstant wash water injection direction.

Although the embodiments have been shown and described, it would beappreciated by those skilled in the art that changes may be made inthese embodiments without departing from the principles and spirit ofthe invention, the scope of which is defined in the claims and theirequivalents.

What is claimed is:
 1. A washing machine comprising: a cabinet having anopening; a tub placed within the cabinet; a drum rotatably placed withinthe tub; a gasket connecting the tub and the cabinet to each other toreduce vibration of the tub to be transmitted to the cabinet duringrotation of the drum; and an injection device configured to inject washwater into the tub, wherein the injection device includes: an injectionnozzle into which wash water is introduced, the injection nozzlepenetrating the gasket, an injection guide configured to guide washwater introduced through the injection nozzle so as to inject the washwater, and a fastener penetrating the gasket to fix a position of theinjection nozzle.
 2. The washing machine according to claim 1, whereinthe fastener is spaced apart from the injection nozzle in parallel. 3.The washing machine according to claim 1, wherein the fastener islocated at an exit end of the an injection flow path defined in theinjection guide.
 4. The washing machine according to claim 1, whereinthe fastener includes a fastener flow path communicating with theinterior of the tub.
 5. The washing machine according to claim 4,further comprising a bubble generation device configured to generate andsupply bubbles into the tub, wherein interior air of the drum is guidedto the bubble generation device through the fastener flow path.
 6. Thewashing machine according to claim 1, wherein at least one of theinjection nozzle and the fastener includes a stepped portion protrudingfrom an outer circumference thereof to allow the injection nozzle to besupported by an outer surface of the gasket.
 7. The washing machineaccording to claim 6, wherein the gasket includes: a through-hole forpenetration of at least a portion of the injection device, and a supportportion protruding outward from the gasket around the through-hole tosupport the stepped portion.
 8. The washing machine according to claim1, wherein the injection guide includes: an upper guide, by which theinjection nozzle and the fastener are supported, a lower guide facing anozzle flow path defined in the injection nozzle, the lower guide beinginclined toward the drum, and a lateral guide connecting the upper guideand the lower guide to each other.
 9. The washing machine according toclaim 8, wherein the upper guide includes a bent surface inclined towardthe drum and defining an upper boundary of wash water injected via theinjection guide.
 10. The washing machine according to claim 9, whereinone end of a fastener flow path defined in the fastener is located onthe bent surface.
 11. The washing machine according to claim 1, whereinthe injection device includes at least one injection device located in acircumferential direction of the gasket.
 12. A washing machinecomprising: a cabinet; a tub placed within the cabinet; a drum rotatablyplaced within the tub; a gasket connecting the cabinet and the tub toeach other; and an injection device penetrating the gasket, wherein theinjection device includes: an injection nozzle having a nozzle seatsupported by a support portion protruding from the gasket to prevent theinjection device from being separated in a Z-axis corresponding to alongitudinal direction of the injection nozzle, and a nozzle flow pathpenetrating the gasket to communicate an interior and an exterior of thegasket with each other, and a fastener spaced apart from the injectionnozzle in parallel.
 13. The washing machine according to claim 12,wherein the injection device includes an injection guide configured toinject wash water introduced through the nozzle flow path into the drum.14. The washing machine according to claim 13, wherein the injectionnozzle and the fastener are spaced apart from each other and coupled tothe injection guide.
 15. The washing machine according to claim 14,wherein the fastener is located closer to the exit end of the injectionguide than the injection nozzle.
 16. The washing machine according toclaim 12, wherein the fastener includes a fastener flow pathcommunicating with the interior of the tub.
 17. The washing machineaccording to claim 16, further comprising a bubble generation device togenerate and supply bubbles into the tub, wherein interior air of thedrum is guided to the bubble generation device through the fastener flowpath.
 18. The washing machine according to claim 12, wherein theinjection device includes at least one injection device located in acircumferential direction of the gasket.
 19. An injection device for awashing machine, the injection device comprising: an injection nozzleinto which wash water is introduced, the injection nozzle penetrating agasket of the washing machine; an injection guide configured to guidewash water introduced through the injection nozzle so as to inject thewash water; and a fastener penetrating the gasket to fix a position ofthe injection nozzle.
 20. An injection device for a washing machine, theinjection device comprising: an injection nozzle having a nozzle seatsupported by a support portion protruding from a gasket, which ispenetrated by the injection device, to prevent the injection device frombeing separated in a Z-axis corresponding to a longitudinal direction ofthe injection nozzle; a nozzle flow path penetrating the gasket tocommunicate the interior and the exterior of the gasket with each other;and a fastener spaced apart from the injection nozzle in parallel.